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Recommender systems often struggle to strike a balance between matching users' tastes and providing unexpected recommendations. When recommendations are too narrow and fail to cover the full range of users' preferences, the system is…

人机交互 · 计算机科学 2023-10-10 Ruixuan Sun , Avinash Akella , Ruoyan Kong , Moyan Zhou , Joseph A. Konstan

With the growing data on the Internet, recommender systems have been able to predict users' preferences and offer related movies. Collaborative filtering is one of the most popular algorithms in these systems. The main purpose of…

信息检索 · 计算机科学 2020-11-11 Mostafa Khalaji

Addressing the challenges related to data sparsity, cold-start problems, and diversity in recommendation systems is both crucial and demanding. Many current solutions leverage knowledge graphs to tackle these issues by combining both…

Recommender systems are essential for guiding users through the vast and diverse landscape of digital content by delivering personalized and relevant suggestions. However, improving both personalization and interpretability remains a…

信息检索 · 计算机科学 2025-08-05 Danial Ebrat , Tina Aminian , Sepideh Ahmadian , Luis Rueda

Recommender systems utilize users' historical data to learn and predict their future interests, providing them with suggestions tailored to their tastes. Calibration ensures that the distribution of recommended item categories is consistent…

信息检索 · 计算机科学 2022-08-23 Mohammadmehdi Naghiaei , Hossein A. Rahmani , Mohammad Aliannejadi , Nasim Sonboli

In recent years, there has been an increasing recognition that when machine learning (ML) algorithms are used to automate decisions, they may mistreat individuals or groups, with legal, ethical, or economic implications. Recommender systems…

人工智能 · 计算机科学 2024-02-02 Hossein A. Rahmani , Mohammadmehdi Naghiaei , Yashar Deldjoo

Fairness is an emerging and challenging topic in recommender systems. In recent years, various ways of evaluating and therefore improving fairness have emerged. In this study, we examine existing evaluation measures of fairness in…

信息检索 · 计算机科学 2024-05-21 Theresia Veronika Rampisela , Maria Maistro , Tuukka Ruotsalo , Christina Lioma

Identifying relationships between items is a key task of an online recommender system, in order to help users discover items that are functionally complementary or visually compatible. In domains like clothing recommendation, this task is…

信息检索 · 计算机科学 2016-09-30 Ruining He , Charles Packer , Julian McAuley

Recommender systems have become an essential component of many online platforms, providing personalized recommendations to users. A crucial aspect is embedding techniques that convert the high-dimensional discrete features, such as user and…

This paper presents a novel value-aware approach to product recommendation that simultaneously addresses the high dimensionality and sparsity of user-item data while explicitly incorporating the contribution of each product and user to…

News recommenders help users to find relevant online content and have the potential to fulfill a crucial role in a democratic society, directing the scarce attention of citizens towards the information that is most important to them.…

信息检索 · 计算机科学 2020-12-21 Sanne Vrijenhoek , Mesut Kaya , Nadia Metoui , Judith Möller , Daan Odijk , Natali Helberger

Recommender systems are one of the most successful applications of data mining and machine learning technology in practice. Academic research in the field is historically often based on the matrix completion problem formulation, where for…

信息检索 · 计算机科学 2018-02-26 Massimo Quadrana , Paolo Cremonesi , Dietmar Jannach

In this paper, based on a weighted projection of bipartite user-object network, we introduce a personalized recommendation algorithm, called the \emph{network-based inference} (NBI), which has higher accuracy than the classical algorithm,…

物理与社会 · 物理学 2009-12-07 Tao Zhou , Riqi Su , Runran Liu , Luoluo Jiang , Bing-Hong Wang , Yi-Cheng Zhang

Recommender systems play a crucial role in mediating our access to online information. We show that such algorithms induce a particular kind of stereotyping: if preferences for a set of items are anti-correlated in the general user…

信息检索 · 计算机科学 2021-10-06 Wenshuo Guo , Karl Krauth , Michael I. Jordan , Nikhil Garg

A large number of online services provide automated recommendations to help users to navigate through a large collection of items. New items (products, videos, songs, advertisements) are suggested on the basis of the user's past history and…

机器学习 · 计算机科学 2013-01-10 Yash Deshpande , Andrea Montanari

Recommender systems leverage both content and user interactions to generate recommendations that fit users' preferences. The recent surge of interest in deep learning presents new opportunities for exploiting these two sources of…

信息检索 · 计算机科学 2016-08-23 Jeroen B. P. Vuurens , Martha Larson , Arjen P. de Vries

Algorithmic recommender systems such as Spotify and Netflix affect not only consumer behavior but also producer incentives. Producers seek to create content that will be shown by the recommendation algorithm, which can impact both the…

计算机科学与博弈论 · 计算机科学 2023-12-12 Meena Jagadeesan , Nikhil Garg , Jacob Steinhardt

We introduce a novel criterion in clustering that seeks clusters with limited range of values associated with each cluster's elements. In clustering or classification the objective is to partition a set of objects into subsets, called…

数据结构与算法 · 计算机科学 2018-05-15 Dorit S. Hochbaum

Recommender systems create enormous value for businesses and their consumers. They increase revenue for businesses while improving the consumer experience by recommending relevant products amidst huge product base. Product bundling is an…

How to make the best decision between the opinions and tastes of your friends and acquaintances? Therefore, recommender systems are used to solve such issues. The common algorithms use a similarity measure to predict active users' tastes…

信息检索 · 计算机科学 2019-08-16 Mostafa Khalaji , Nilufar Mohammadnejad